Constructive Type Theory

The aim of our paper is to present the Constructive Type Theory (CTT) and some related concepts for the Swedish logician Per Martin Löf, who constructed a formal logic system in order to establish a philosophical foundation of constructive mathematics. He tried to overcome the deficiencies of the v...

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Bibliographic Details
Main Authors: Terkia Mechouet, Farid Zidani
Format: Article
Language:Arabic
Published: Scientific and Technological Research Center for the Development of the Arabic Language 2022-06-01
Series:Al-Lisaniyyat
Subjects:
Online Access:https://www.crstdla.dz/ojs/index.php/allj/article/view/58
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Summary:The aim of our paper is to present the Constructive Type Theory (CTT) and some related concepts for the Swedish logician Per Martin Löf, who constructed a formal logic system in order to establish a philosophical foundation of constructive mathematics. He tried to overcome the deficiencies of the various theories constructed to solve a problematic of set theory which is: Does the class of all classes is a member to itself or not? among them Russell’s Type Theory, which is founded on the concept of type, despite its imperfections and criticisms, opened the way to others theories like the Alonzo Church’s one which is based on function not on set, and built what we call Lambda Calculus in 1930. These theories were the origin of Constructive Type theory and its basic concepts: type, proposition, judgment, proof…etc.
ISSN:1112-4393
2588-2031